Zhigang Zhao , Yining Hu , Zhifang Zhao , Yanming Liu , Chengzhuo Xie , Zhuojun Hu
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引用次数: 0
Abstract
The curing temperature is an important reason for the cracking of rock-fill dam face slab concrete (FSC) at early age. This paper established a Krstulovic-Dabic hydration kinetics model through XRD experiments and isothermal calorimetry (IC) experiments, and investigated the effects of curing temperature and carbon nanotubes (CNTs) on the hydration process of FSC at ultra-early age within 24 h. The results indicated that the K-D model was helpful in analyzing the hydration mechanism of FSC. The increase of curing temperature significantly accelerated the hydration reaction rate of FSC during the ultra-early age period. The addition of CNTs was beneficial for changing the crystal phase of calcium hydroxide (CH), increasing the crystallinity of CH, promoting the nucleation and growth of hydration products, and thereby improving the microstructure of FSC to enhance its cracking resistance.
期刊介绍：
Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials.
Contributions include, but are not limited to, a variety of topics such as:
• Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors
• Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart
• Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction
• Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots.
• Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing.
• Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic
• Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive
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